Struct StateDelta 

pub struct StateDelta {
    pub retract: Vec<Triple>,
    pub assert: Vec<Triple>,
}

The changes an append makes to the actor’s current-state graph (the named graph named by the actor address): statements of exited states to retract, and statements to assert.

Only stores that declare JournalCapabilities::state_in_append accept a delta; they commit it in the same transaction as the entries. Retractions apply before assertions. Statements may not contain blank nodes, so that a later delta can name them again.

Fields

retract: Vec<Triple>

Statements to retract from the current-state graph.

assert: Vec<Triple>

Statements to assert in the current-state graph.

Implementations

impl StateDelta

pub fn is_empty(&self) -> bool

True when the delta changes nothing.

Trait Implementations

impl Clone for StateDelta

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StateDelta

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for StateDelta

fn default() -> Self

Returns the “default value” for a type.

impl Eq for StateDelta

impl PartialEq for StateDelta

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for StateDelta